console: report detach message on demand

When users pass -1 there's there won't be an escape sequence to exit the
console so no need to print a misleading info message about how to detach.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/console.c b/src/lxc/console.c
index e95f5c54b8776e22c1bd97d70d4a8edc3aa8dc8e..8f6203f000135bad440ea33b13fc4fe4510ad3dc 100644 (file)
--- a/src/lxc/console.c
+++ b/src/lxc/console.c
@@ -730,11 +730,14 @@ int lxc_console(struct lxc_container *c, int ttynum,
                goto close_mainloop;
        }
 
-       fprintf(stderr, "\n"
+       if (ts->escape >= 1) {
+               fprintf(stderr,
+                       "\n"
                        "Connected to tty %1$d\n"
                        "Type <Ctrl+%2$c q> to exit the console, "
                        "<Ctrl+%2$c Ctrl+%2$c> to enter Ctrl+%2$c itself\n",
                        ttynum, 'a' + escape - 1);
+       }
 
        if (istty) {
                ret = lxc_setup_tios(stdinfd, &oldtios);